Machine-tool-frame structure



Dee, 16, 1924.

R. H. RAUSCH ET AL IVICHINE TOOL FRAME STRUCTURE Filed Nov. 5, 1923 2 Sheets-.Sheet l IllllllIIi-I v W WTL/M.,

lllLrffi Llll TTOHNEY @sa E5; i924 Y 'g' R. H. RAUSCH E?" AL MACHINE TOOL FRAME STRUCTURE Filed Nov. 5, 1925 2 Sheets-Shea?, 2

Patented Dec. i6, i224.

ROSWELL H. RAUSCH AND NICHOLAS MARCALUS, OIF PLAINFIELDfNEW JERSEY, AS-

SIGNORS TO NILES-BEMENT-POND COMPANY, 0F NEW YORK, N. Y., A CORPORATIGN OF NEW JERSEY.

MACHINE-TOOL-FRAME STRUCTURE.

AppIication led November 5, 1923-. Eteriall No. 672,942.

To all whom it may concern.'

Be it known that we, RosWnLL H. RAUSCH and NICHOLAS MARCALUS, citizens of the United States, residing at Plainfield, in the county of Union and State of New Jersey, have invented certain new and useful lmproveinents in Machne-Tool-Frame Structures, of which the following is a specification. G

This invention relates to boring mills, planers and like machines wherein a tool supporting cross rail is mounted on a pair of uprights adjacent and extending above a work supporting table. The cross rail spans the uprights and is ordinarily adjustable vertically thereon, the rail being ordinarily supported'entirely by the uprights. l When performing very heavy cutting operations, the portion of the rail intermediate the uprights is liable to spring or vibrate. To prevent such occurrence, we provide an abutment between the uprights, preferably integral therewith, for rigidly backing up such portion of the rail. As illustrated in the drawings, we provide each upright with an inwardly extending bracket-like projection and bolt such projections together at their junction. rfhe cross rail has a rearwardly extending portion which engages against an abutment surface of these brackets. The primary object of the invention is to provide an improved machine tool structure of this type.

As illustrated in the drawings, the two uprights are constructed independently and thereafter assembled by bolting the bracket portions together. Such construction can be very readily manufactured and when assembled forms a very rigid frame. Means is provided in connection with the rail and brackets for preventing looseness therebetween. Such means can be of any construction desired, three'of such means being illustrated in the drawings. Another object of the invention is to provide an improved machine tool structure of the type described which can be readily and cheaply manufactured and which will adequately and substantially perform the functions stated.

With the above and other objects in view, our invention consists in the features of construction and operation set forth in the following speciication and illustrated inthe accompanying drawings. In such drawings annexed hereto and forming a part of this ywardly above the table.

specification, we have shown certain einbodii ments of our invention in a planer but it will be understood that the invention can be otherwise embodied and that the drawings are not to be construed as dening or limiting the scope of the invention, the claims appended to this specification being relied upon for that purpose.

Referring to the figures of the drawings:

Figure l is a fragmentary plan view of a planer embodying our invention.

Fig. 2 is a front elevation thereof, the cross rail being shown in dot and dash lines.

Fig. 3 is a fragmentary plan view of a modified form of the invention.

Fig. 4 is a fragmentary sectional view thereofqtaken on line M of Fig. 3.

Fig. 5 is a rear elevation of another modified form of the invention.

Fig. 6 is a sectional view thereof taken on line 6 6 0f Fig. 5.

Fig. 7 is a sectional View taken on line 7 7 ofFig. 5.

Referring more specifically to the drawings by reference characters, l indicates the bed of a planer on the horizontal ways 2 of which is slidably mounted a work table 3. A pair of uprights 4 are secured rigidly to the opposite sides of the bed and extend up- The front portions of the uprights are faced off at 5 and a tool supporting cross rail 6 is slidably mounted thereon. Blocks 7 are bolted to the rail and engage the uprights in a manner to hold thc rail in place thereon.

Projecting inwardly from each upright 4 is a bracket 8 preferably integral with the uprights as illustrated. Each bracket comprises a front vertically extending body portion 8, a vertical rearwardly extending portion 8b, and a horizontal rearwardly extending reinforcing rib 8C. When assembled ythe portions 8b are adjacent each other and are bolted together at 9 with a filler lO therebetween. The filler is of comparatively soft material and the function thereof is to provide a secure jointure of the brackets without requiring'any accurate fitting between the adjacent faces of the portions 8".

l The portion of the cross rail between the uprights extends rearwardly at l1 and, as shown in Figs. 1, 2, 5, 6 and 7, the rear vertical surface thereof is faced off at 12 to engage a like vertical front surface on the portion 8EL of the brackets. Any suitable means can be provided for drawing these vertical surfaces into firm engagement.

As illustrated in Figs. 1 and 2, the portion 11 of the cross rail is rovided with two vertically extending T-s ots 13 adapted to receive the heads of bolts 14- mounted in the portions 8a of the brackets 8. The cross rail can be vertically adjusted on the uprights and thereafter secured ip place by rotating the nuts 14B. j

As illustrated in Figs. 5, 6 and 7, each bracket 8 is provided with two holes 15 Aand 16 therein. A clamping bolt 17 can extend through the hole 15 and engage'in any one\ of three tapped holes` 18 in the cro rail or the bolt can be placed in the hole 16 and engage in any one of two tap holes 19 in the cross rail. It should be noted that the holes 15 Aand 16 are slightly larger than the bolt 17 whereby to provide for a slight vertical adjustment of the rail. Also the through holes 15 and 16 and the tapped holes 18 and 19 are alternately arranged in a manner yto provide vertical adjustment of the rail on the uprights. The arrangement of the. holes 15 and 16 and holes 18 and 19 in combination with the oversize feature of the holes 15 and 16, relative to the bolts. 17, permits fine adjustment of the rail to any position desired between the -upper and lower limits of adjustment. It will of course be understood that as many holes 15,

16, 18 and 19 can be provided as desired.

In Figs. 3 and 4, the. cross rail is not positively connected to the brackets 8 but adjustable means in connection therewith are adapted to provide a rigid bearing between such members. The brackets are faced oi'sat 20 in a manner to cooperate with surfaces on the rail faced oi at 21. A pair of taper gibs 22 are provided between these surfaces, the gibsv being adjustable longitudinally by means of screws 23 threaded into the rail. It will be readily understood that by adjusting the-gibs downwardly, the gibs wedge into place between the surfaces in a manner providing a rigid bearing between the rail and brackets.

What we claim is:

1. In a machine tool, the combination of a base, a pair of spaced uprights thereon, a bracket projecting inwardly from each upright toward the other upright, means detachably securing the brackets together, and a cross rail mounted to slide vertically on the uprights, the portion of the rail between the uprights being supported rearwardly by bearing against the said brackets.

2. In a machine tool, the combination of ak base, a pair of spaced uprights thereon, a bracket projecting inwardly from each upright toward the other upright, means for securing the brackets together, and a cross rail mounted to slide vertically on the uprights, the cross rail having a rearwardly extending portion intermediate the uprights in engagement with the said brackets.

3. In a machine tool, the combination of a base, a pair of spaced uprights thereon, each upright being provided with an integral bracket projecting towardthe other upright, means securing the said brackets together, a cross rail mounted to slide vertically on the uprights, the cross rail having a rearwardly extending portion intermediate the uprights in engagement with the said brackets, and means preventing looseness between the rail and the said brackets.

4. In a machine tool, the combination of `a base, a pair of spaced uprights thereon,

each upright being provided with an integral bracket projecting vtoward the other upright, a filler between the said brackets, bolts for securely connecting the brackets together with the filler therebetween, andfa cross rail mounted to slide vertically on the uprights, the portion of the rail between the uprights being supported rearwardly by bearing against the said brackets.

5. In a machine tool, the combination of la base, a pair of spaced uprights thereon,

a bracket projecting inwardly from each upright toward the other uprlght, means for securing the brackets together, a cross rail mounted to slide vertically on the uprights, the cross rail having a rearwardl extending portion intermediate the uprig ts in engagement with the saidV brackets, the engaging surfaces of the brackets and cross rail being faced 0E to provide cooperating bearing surfaces therebetween, and means providing a' rigid bearing between the crossrail and brackets with the rail in any one of various positions of vertical adjustment.

6. In a machine tool, the combination of a base, a pair of spaced'uprights thereon, each upright being tegral bracket projecting toward the other pright, each bracket comprising a vertically extending vbody portion and a horizontally, extending reinforcing rib, means securing the said brackets together, and a cross rail mounted to slide vertically on the luprights, the cross rail having a rearwardly extending portion intermediate the uprights in engagement with the said vertically extending body portions of the brackets. 7. In a machine tool, the combination of a base, a pair of spaced u rights thereon, a cross rail mounted to sli e vertically on the upri hts, a bracket projecting inwardly from eac upright toward the other upright,

provided with an ineah bracket comprising a vertical body gether, the cross rail having a rearwardly the portion of the rail between the uprights extending portion intermediate the uprights being supported rearwardly by bearing in engagement with the rst mentioned-veragainst the said brackets, and adjustable tical portions of the brackets. means providing a rigid bearing between 5 8. In a machine tool, the combination of the cross rail and brackets.

a base, a pair of spaced uprights thereon, ln testimony whereof, we hereto affix our a bracket projecting inwardly from each upsignatures. right toward the other upright, means for securing the brackets together, a cross rail ROSWELL H. RAUSCH. 10 mounted to slide vertically on the uprights, NICHOLAS MARCALUS. 

